Increasing sensitivity of geophone signal

[johnerrington]

Remember the link I gave you?

GitHub - olewolf/geophone: Code and Arduino shield for a frequency analyzer...

here is the first part of the circuit. You can build it on breadboard.

Noise and signal are separated by a process called "filtering". The Ole Wolf circuit provides that filtering. You connect the geophone at JP1 and the output from pin 1 of the op amp connects to your ADC.

The TLV2462 will be suitable - but you need to build the circuit above - or similar - around it.

More info on using op amps here

Using Operational Amplifiers in your Arduino project

Introduction: Using Op Amps to measure signals with an Arduino Who is this tutorial for? Well, not "newbies" or anyone happy to just connect together modules. If you have a LITTLE knowledge of electronics, have perhaps used a transistor or a FET to extend the output capability of an arduino, and want to learn about ways to handle different Analog inputs, than read on! What will you need? All you will need to carry out a few simple experiments is a breadboard, a couple of (very inexpensive) …